一种新型便携式电话传输肺量计的评估
Assessment of a new transtelephonic portable spirometer.
作者信息
Abboud S, Bruderman I
机构信息
Biomedical Engineering Department, Tel Aviv University, Israel.
出版信息
Thorax. 1996 Apr;51(4):407-10. doi: 10.1136/thx.51.4.407.
BACKGROUND
A new portable spirometer, the Spirophone, has been developed that records a subject's blow and can then transmit all the data by telephone to a receiving centre for analysis and comment. Tests of this device were undertaken to determine its accuracy and reliability.
METHODS
The performance of the Spirophone was tested using computer generated wave forms, by delivering blows from calibrated syringes at different flows, and by comparing subjects' blows with those recorded with a commercial spirometer.
RESULTS
Using computer generated wave forms all lung function indices were accurate to within 1% and blows delivered from calibrating syringes were accurate to within 5%. When subjects performed repeated forced vital capacity (FVC) manoeuvres there were no significant differences between lung function indices recorded with the Spirophone and with a commercial spirometer. With the Spirophone and commercial spirometer in series the FVC and forced expiratory volume in one second (FEV1) were within 5% of each other in nine out of 10 healthy subjects.
CONCLUSION
The Spirophone recorded maximal forced expiratory manoeuvres with acceptable accuracy, reliability, and reproducibility, and this system offers the ability to monitor a patient's lung function at a centre remote from the patient.
背景
已研发出一种新型便携式肺活量计——呼吸听诊式肺活量计（Spirophone），它可记录受试者的呼气，并能通过电话将所有数据传输至接收中心进行分析和评论。对该设备进行了测试以确定其准确性和可靠性。
方法
使用计算机生成的波形、通过校准注射器以不同流速进行呼气以及将受试者的呼气与商用肺活量计记录的呼气进行比较，对呼吸听诊式肺活量计的性能进行了测试。
结果
使用计算机生成的波形时，所有肺功能指标的误差在1%以内，校准注射器呼出的气量误差在5%以内。当受试者进行重复的用力肺活量（FVC）操作时，呼吸听诊式肺活量计和商用肺活量计记录的肺功能指标之间无显著差异。在10名健康受试者中，有9名受试者使用串联的呼吸听诊式肺活量计和商用肺活量计时，其FVC和一秒用力呼气量（FEV1）相差在5%以内。
结论
呼吸听诊式肺活量计记录最大用力呼气操作时具有可接受的准确性、可靠性和可重复性，并且该系统能够在远离患者的中心监测患者的肺功能。
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